FIELDS HILL IMPROVEMENT ASSOCIATION
PWS ID: IL0995150 · OTTAWA, Illinois 61350
Population Served
312
Total Violations
210
Health-Based Violations
34
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 104
- County
- LaSalle
- School/Daycare
- No
- MCL Violations
- 32
- Monitoring Violations
- 129
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | MON | 71 | 2025 |
| Chlorine | MR | 47 | 2025 |
| Public Notice | Other | 27 | 2025 |
| Combined Radium (-226 and -228) | MCL | 26 | 2023 |
| Consumer Confidence Rule | Other | 12 | 2025 |
| Lead and Copper Rule | MR | 7 | 2023 |
| Coliform (TCR) | MR | 4 | 1994 |
| LEAD AND COPPER RULE REVISIONS | RPT | 4 | 2025 |
| Coliform (TCR) | MCL | 4 | 1994 |
| Gross Alpha, Excl. Radon and U | MCL | 2 | 2000 |
| LEAD AND COPPER RULE REVISIONS | TT | 2 | 2024 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.